METHOD FOR PRODUCTION OF BIMETALLIC RIBBED CYLINDERS Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: method includes the steps of cast-iron liner aluminizing and aluminium ribbed jacket casting- in, with cast-iron liner external surface aluminizing effected through metallization. The finished ribbed cylinder is thermally treated at 570 ± 10 C for 5 to 10 hours depending on the wall thickness. The method enables the aluminizing time to be substantially reduced (from 15-20 min to 1 min) with high degree of adhesion of cast iron and aluminium layers. EFFECT: reduced time of treatment. 4 dwg